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More pointless ramblings about "transformers"

Discussion in 'Jokes Archive' started by winston1, 22 Mar 2017.

  1. ban-all-sheds

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    Just because you are unable to understand it that doesn't mean that the rest of the world is as limited in their comprehension.


    The thing is that I am not wrong (there are such things as electronic transformers), but Eric is (Part P and notification are separate).
     
  2. winston1

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    But you are wrong, but refuse to accept it.
     
  3. ban-all-sheds

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    WINSTON YOU ARE A *£(!"&%_#@ LIAR!
     
  4. ban-all-sheds

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    Oh look - more bogus bullshit *******s from bernard:
    Shall we ask him again to propose a credible mechanism whereby the sort of installer who doesn't even pick up on the word "electronic" on the device he is installing would, if only the device were labelled "switch mode power supply", of course realise that there might be problems to be aware of?

    If we did that, do we think that this time he would succeed, or do we think that this time, just as with all the other times, he will ignore and/or refuse to do it?

    Bernard - shut the[​IMG]up.
     
  5. bernardgreen

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    That is NOT the only issue.

    2) Most "transformers" sold for ELV lighting are switch mode power supplies ( SMPS ) and the 12 volt supply from these has a lot of high frequency harmonics of the switching frequency. Long leads will radiate these harmonics as radio frequency energy which can and does interfere with wireless devices. In the small print of some installation instructions is the requirement to have leads less than 1 metre on the 12 volt output.

    3) Long leads can make some SMPS devices unstable and then the 12 volts is not longer held at 12 volts.
     
  6. winston1

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    They are all idiots. You cannot run LED strips off a transformer. LED strips require 12 volts DC and transformers are AC devices. You need a LED DC power supply. One such supply can supply several strips. With a DC supply there should be no problems with RFI on long leads which is a problem with SMPS used on halogen lights. I guess this is what the idiots were thinking of.
     
  7. ban-all-sheds

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    The devices being discussed are "LED transformers".

    As in https://www.diynot.com/diy/threads/led-transformers.488823/ and
    and Please login (registration is free!) to view this link.
    https://www.google.co.uk/search?q=led+transformer&source=lnms
    and Please login (registration is free!) to view this link.
    https://www.google.co.uk/search?q=led+transformer&source=lnms



    They were thinking of the devices their customer was asking about - LED transformers.

    They are not the ones behaving like idiots here.
     
  8. bernardgreen

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    The general public and the majority of people selling SMPS devices are ignorant of the consequences of installing an SMPS device.

    It is understandable that the general public are ignorant as they assume the people selling them an SMPS device are providing accurate and complete infromation about the SMPS device.

    This forum could do a service to a small proportion of the general public that read the forum by explaining

    1) the differences between the various diffent types of SMPS devices. ( controlled voltage, controlled current, etc etc )

    2) the hazards that can be created by installing an SMPS device. ( the affect on wireless communications being just one of them )
     
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  9. winston1

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    Yes you can find many idiots who don't know what they are talking about with Google. But as BAS is an idiot we don't need to Google do we?

    Fact is transformers (even incorrectly called electronic transformers) are AC devices and LED strips require DC, aka DC power supply.
     
  10. bernardgreen

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    I do not think BAS is an idiot. Like most people who do not have experience of radio communication system BAS is unaware of the problems that SMPS devices can create.

    Better education of the people selling these devices is needed so that they can be aware of the problems and inform their customers of the problems.
     
  11. winston1

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    Well in that case why does he keep insisting that a DC device like an LED strip can be run off an AC device like a transformer?

    Perhaps he needs the better education you refer to.
     
  12. EFLImpudence

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    Why has this thread been placed in "Jokes Archive"?

    Surely it would be more appropriate in "Word Games".

    Transformer - noun - something (anything) which 'transforms' (anything).
    Transform - verb - change completely; synonyms: alter, change, convert, etc.
     
  13. ban-all-sheds

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    IMO all future posts on the topic from the chuckle brothers should just be deleted.

    Or better still they should simply be prevented from ever appearing in the first place.

    Goodbye to all the howlers-at-the-moon in this topic:

    ScreenHunter_371 Sep. 14 13.15.jpg
     
  14. winston1

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    You are back again, so I need to tell you again they are not transformers. LED strips reqiire DC, transformers give out AC. What the OP needs are 12 volt DC power power supplies.

    When will you understand this?
     
  15. ban-all-sheds

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    Just to warn you - there are a few sad obsessives on this site who will not stop complaining about the use of the word "transformer" for the devices powering your lights, and at every opportunity they will bang on about how they are switch mode power supplies (not even accepting the term "electronic transformer").

    Sometimes one of them acts as if the problems with using them for lighting are actually because of the name embossed on the outside of the enclosure, and expects us to believe him.

    If they do that here (and it doesn't matter how many times individual members, or the DIYnot site itself, asks them to stop - they just refuse to) ignore them - they are idiots.
     
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